Faucet



(No Model.)

A W. WRIGLBY.

Y FAUGBT. No'l 515,810f.- Patented Mar. 6189'42- fad@ gd MW 0 0 Y m w l/ y steep pitch, the said valve and stein being i at the same time compressing the spring, the

. y a side elevation of the valve operating stem purpose for which the faucet is intended, it

,valve against the said seat.

Y used as a basin faucet having a supporting -above said valve seat is open as shown to re- UNITED STATES PATENT OFFICE,

VILLIAM VRIGLEY, OF BOSTON, MASSACHUSETTS.

FAUCET.

SPECIFICATION forming part of Letters Patent No. 515,810, dated March 6, 1894.

Application tiled April 18,1 892.

.To wl whom t may concern.-

Be it known that I, WILLIAM WRIGLEY, ot Boston, county of Sudolk, State of Massachusetts, have invented an lmprovementinFaucets, of which the following description, in connection with the accompanying drawings, is a specification, likeletters' on the drawings representing like parts. y

My invention is embodied in a self closing faucet and is intended to produce a simple, efticient, and inexpensive faucet.

The invention is embodied in a faucet hav ing a valve which seats on the water inlet against the pressure of the water and is connected with an operating stem, as shown in this instance by a multiple screw thread of acted upon by a spring which tends to force them apart, thereby normally pressing the The stem is provided with a flange which prevents longitudinal movement, and the valve is engaged with the faucet body or shell in such manner as to prevent rotary movement the consequence being that rotary movement of the stern produces a longitudinal movement of `the valve, raising the same from its seat, and

force of which tends to restore the parts to their original normal position'when the handle is released.

Figure 1 is a longitudinal vertical section of a faucet embodying this invention; Fig. 2

or handle detached, and Fig. 3 a transverse section on line Fig. l. e

The body or shell a of the faucet may be of any suitable shape depending upon the being shown in this instance as of the kind foot a2 through which the water inlet c3 is made, and a lateral discharge spout a4. The inlet passage as terminates in a valve seat b and the top or neck a5 of the faucet body ceive the valve and working parts. The valve proper c is secured to a cup shaped body c2 which has a longitudinal movement in the neck a5 of the faucet and is restrained from Serial No. 429,633. (No model.)

ing the passage a5 dat faced in cross section and the outer surface of the body c2 of the valve of similar cross sectional shape, as clearly shown in Fig.

The interior of the upper part of the body c2 is provided with inclined grooves and projections or, with a multiple internal thread of steep pitch as indicated at c4, which cooperates with a corresponding external thread on the valve stem or handle d. The lower portion of said stem is provided with a recess d2 and the said stem is provided with an external iiange cl3 which is engaged with the faucet body as shown in this instance by a cap or.6 which screws upon the neck c5 of the faucet body conning the said flange d3 between the end of the neck and a suitable recess in the said cap. The said stem dis provided with a suitable operating handle e by which it may be turned, and owing to the screw connection between the said stem and the valve body the rotation of the stem in one direction moves the valve from its seat and in-the opposite direction moves the valve toward its seat. A spring f is interposed between the valve body and the operating stem d the said spring being contained in the recesses in said valve body and stem as shown and tending by its expansion to move the said parts longitudinally apart from one another, so that as the stem is restrained from longitudinal movement by the iiange d3 the said spring tends to move the valve c toward its seat. Rotation ot the stem in the direction to raise the valve from its 'seat theretore compresses the spring and the screw thread connection between the stem and valve is of such pitch that the longitudinal pressure developed by the spring easily effects the reverse rotation ot the stem when the handle is released and thus forces the valve to its seat. lWhen applied in this manner the spring acts by its expansive force wholly, and not by its torsional force and the valve seats without rotary movement on the valve seat b the spring always acting to press it etfectively to its 'seat and compensating for wear in the valve and its seat. 'The stem d is shown in this instance as provided with a tapering 4or inclined portion d5 above the flange d3 which ts a corresponding recess in Ico the cap piece a which may take the upward pressure of the spring rather than the flange cl3 which then acts only to prevent the stem from drawing down into the faucet, instead of lifting up the Valve when the stem is turned. When the valve is opened pressure of the water in the Valve body tends to force the stern upward thus causing it to engage .tightly at the flange or inclined portion d5 with the cap so as to prevent leakage through -the cap around the stem, and consequently no packing is required.

It is not necessary that the valve body should have an accurate fit in the passage in the neck nor thatit should be square to prevent rotation of the valve as it is obvious that the rotation can be prevented by other Well known plans of construction.

The within-described self-closing faucet, consisting essentially of a valve seat, the nonrotating Valve having a hollow, screwthreaded, cup-shaped body c2, the rotary Valve stem d having a anged and tapered portion, and a hollow or recessed portion provided with an external screwthread of steep pitch and entering and remgaging the screwthreaded body of the valve, an expansion spring interposed bctween the valve and stern and within their hollow portions and normally seating the valve by movement thereof in a right line as opposed to rotating it, and a cap tit- 

